Ravin cables provides medium voltage cables up to 33 kv. Electrical grade high conductivity aluminium/copper wires are formed to make stranded compactcircular conductors as per relevant standards. Extruded semi-conducting compound is applied over the conductor in tandem with insulation. Insulation is of high quality super clean xlpe insulation compound. For cables rated over 3.3 kv, shield consisting of a layer of extruded semi-conducting compound applied in tandem over the insulation, copper tape with number/colour marking is applied over the cores, where required water blocking tape can also be provided. Armour constructional features includes of galvanised wire/strip as per relevant standard is provided over inner sheath to guard against mechanical damage. Outer sheath is of extruded st-2 flame retardant pvc compound, having oxygen index value of minimum 30 per cent as per relevant standard and is resistant to termite and rodent attack. On every meter of the outer sheath progressive sequential marking, size marking, voltage grade, manufacturers name and any other desired markings are embossed. On every meter of the outer sheath.